jdmboostedhatch

well ive got a 92 hatch and its boosted and it runs great of 10 psi and i decided to install a mbc and it still ran great on 10 psi so i turned it up to 15psi and its almost as its cutting out completely after i build boost and idk what the problem is. fuel pump? or do i need bigger injectors? if anyone could help it would be greatly appreciated.
and yea im a new member so if this is posted in the wrong place, im sorry.